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| author | Eric Paris <eparis@redhat.com> | 2010-10-28 23:21:58 +0200 |
|---|---|---|
| committer | Eric Paris <eparis@redhat.com> | 2010-10-28 23:22:15 +0200 |
| commit | e1c048ba786789afdc66f32d8394bb5a0014bbba (patch) | |
| tree | 03a8ca0e2ca11d40f175442338ab6c75d772940c /fs | |
| parent | fanotify: limit number of listeners per user (diff) | |
| download | linux-e1c048ba786789afdc66f32d8394bb5a0014bbba.tar.xz linux-e1c048ba786789afdc66f32d8394bb5a0014bbba.zip | |
fanotify: do not send events for irregular files
fanotify_should_send_event has a test to see if an object is a file or
directory and does not send an event otherwise. The problem is that the
test is actually checking if the object with a mark is a file or directory,
not if the object the event happened on is a file or directory. We should
check the latter.
Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/notify/fanotify/fanotify.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c index 60c11c306fd9..8d98e1f5817b 100644 --- a/fs/notify/fanotify/fanotify.c +++ b/fs/notify/fanotify/fanotify.c @@ -160,20 +160,21 @@ static bool fanotify_should_send_event(struct fsnotify_group *group, __u32 event_mask, void *data, int data_type) { __u32 marks_mask, marks_ignored_mask; + struct path *path = data; pr_debug("%s: group=%p to_tell=%p inode_mark=%p vfsmnt_mark=%p " "mask=%x data=%p data_type=%d\n", __func__, group, to_tell, inode_mark, vfsmnt_mark, event_mask, data, data_type); - /* sorry, fanotify only gives a damn about files and dirs */ - if (!S_ISREG(to_tell->i_mode) && - !S_ISDIR(to_tell->i_mode)) - return false; - /* if we don't have enough info to send an event to userspace say no */ if (data_type != FSNOTIFY_EVENT_PATH) return false; + /* sorry, fanotify only gives a damn about files and dirs */ + if (!S_ISREG(path->dentry->d_inode->i_mode) && + !S_ISDIR(path->dentry->d_inode->i_mode)) + return false; + if (inode_mark && vfsmnt_mark) { marks_mask = (vfsmnt_mark->mask | inode_mark->mask); marks_ignored_mask = (vfsmnt_mark->ignored_mask | inode_mark->ignored_mask); |